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Three-dimensional polypyrrole/MnO2 composite networks deposited on graphite felt as free-standing electrode for supercapacitors.
- Source :
-
Materials Letters . Aug2013, Vol. 104, p48-52. 5p. - Publication Year :
- 2013
-
Abstract
- Abstract: Polypyrrole/MnO2 composites with unique three-dimensional network structure were successfully deposited on graphite felt (GF) fibers at the temperature of 50°C to fabricate PYMG-HT composite, which can be used as a free-standing electrode for supercapacitors. For comparison, PYMG-LT electrode was also prepared in ice bath, and the polypyrrole/MnO2 deposits on GF prepared at 0°C exhibit nano-flower shape, which is different from PYMG-HT. The PYMG-HT electrode displays specific capacitance as high as 821.3Fg−1 at the current density of 0.5Ag−1, which is much higher than that of PPy/MnO2 reported previously. Moreover, the PYMG-HT exhibits enhanced capacitive performance compared to PYMG-LT electrode. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 104
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 89257525
- Full Text :
- https://doi.org/10.1016/j.matlet.2013.04.008